VENOM EXHAUST WORKS would like to introduce their bolt on range of High Flow Cats to suit High Performance Nissan Vehicles, including the S13, R32 and R33 Skylines and R34 GTR. This Bolt-on cat is our larger 500 Series unit which comprises of a 5" Body Cat (3" in/out) with a 100CPSI substrate for uncompromised flow. It will bolt up to all of the above models where the cat is in the factory position with 3" Pipework.